From 779426b2fa8acf415a01998d91ad77ebb6e64be4 Mon Sep 17 00:00:00 2001
From: Haoyu Qiu <timothyqiu32@gmail.com>
Date: Fri, 26 Apr 2024 08:27:27 +0800
Subject: [PATCH] Allow setting icon max width for TabContainer

---
 doc/classes/TabContainer.xml | 15 +++++++++++++++
 scene/gui/tab_container.cpp  | 18 ++++++++++++++++++
 scene/gui/tab_container.h    |  3 +++
 3 files changed, 36 insertions(+)

diff --git a/doc/classes/TabContainer.xml b/doc/classes/TabContainer.xml
index f4d69c3076bc..090afa022078 100644
--- a/doc/classes/TabContainer.xml
+++ b/doc/classes/TabContainer.xml
@@ -64,6 +64,13 @@
 				Returns the [Texture2D] for the tab at index [param tab_idx] or [code]null[/code] if the tab has no [Texture2D].
 			</description>
 		</method>
+		<method name="get_tab_icon_max_width" qualifiers="const">
+			<return type="int" />
+			<param index="0" name="tab_idx" type="int" />
+			<description>
+				Returns the maximum allowed width of the icon for the tab at index [param tab_idx].
+			</description>
+		</method>
 		<method name="get_tab_idx_at_point" qualifiers="const">
 			<return type="int" />
 			<param index="0" name="point" type="Vector2" />
@@ -164,6 +171,14 @@
 				Sets an icon for the tab at index [param tab_idx].
 			</description>
 		</method>
+		<method name="set_tab_icon_max_width">
+			<return type="void" />
+			<param index="0" name="tab_idx" type="int" />
+			<param index="1" name="width" type="int" />
+			<description>
+				Sets the maximum allowed width of the icon for the tab at index [param tab_idx]. This limit is applied on top of the default size of the icon and on top of [theme_item icon_max_width]. The height is adjusted according to the icon's ratio.
+			</description>
+		</method>
 		<method name="set_tab_metadata">
 			<return type="void" />
 			<param index="0" name="tab_idx" type="int" />
diff --git a/scene/gui/tab_container.cpp b/scene/gui/tab_container.cpp
index 05f44891f6f8..e2feb59a8c7a 100644
--- a/scene/gui/tab_container.cpp
+++ b/scene/gui/tab_container.cpp
@@ -794,6 +794,22 @@ Ref<Texture2D> TabContainer::get_tab_icon(int p_tab) const {
 	return tab_bar->get_tab_icon(p_tab);
 }
 
+void TabContainer::set_tab_icon_max_width(int p_tab, int p_width) {
+	if (tab_bar->get_tab_icon_max_width(p_tab) == p_width) {
+		return;
+	}
+
+	tab_bar->set_tab_icon_max_width(p_tab, p_width);
+
+	_update_margins();
+	_repaint();
+	queue_redraw();
+}
+
+int TabContainer::get_tab_icon_max_width(int p_tab) const {
+	return tab_bar->get_tab_icon_max_width(p_tab);
+}
+
 void TabContainer::set_tab_disabled(int p_tab, bool p_disabled) {
 	if (tab_bar->is_tab_disabled(p_tab) == p_disabled) {
 		return;
@@ -990,6 +1006,8 @@ void TabContainer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_tab_tooltip", "tab_idx"), &TabContainer::get_tab_tooltip);
 	ClassDB::bind_method(D_METHOD("set_tab_icon", "tab_idx", "icon"), &TabContainer::set_tab_icon);
 	ClassDB::bind_method(D_METHOD("get_tab_icon", "tab_idx"), &TabContainer::get_tab_icon);
+	ClassDB::bind_method(D_METHOD("set_tab_icon_max_width", "tab_idx", "width"), &TabContainer::set_tab_icon_max_width);
+	ClassDB::bind_method(D_METHOD("get_tab_icon_max_width", "tab_idx"), &TabContainer::get_tab_icon_max_width);
 	ClassDB::bind_method(D_METHOD("set_tab_disabled", "tab_idx", "disabled"), &TabContainer::set_tab_disabled);
 	ClassDB::bind_method(D_METHOD("is_tab_disabled", "tab_idx"), &TabContainer::is_tab_disabled);
 	ClassDB::bind_method(D_METHOD("set_tab_hidden", "tab_idx", "hidden"), &TabContainer::set_tab_hidden);
diff --git a/scene/gui/tab_container.h b/scene/gui/tab_container.h
index c11d9824e7f7..e00bc780d47b 100644
--- a/scene/gui/tab_container.h
+++ b/scene/gui/tab_container.h
@@ -161,6 +161,9 @@ class TabContainer : public Container {
 	void set_tab_icon(int p_tab, const Ref<Texture2D> &p_icon);
 	Ref<Texture2D> get_tab_icon(int p_tab) const;
 
+	void set_tab_icon_max_width(int p_tab, int p_width);
+	int get_tab_icon_max_width(int p_tab) const;
+
 	void set_tab_disabled(int p_tab, bool p_disabled);
 	bool is_tab_disabled(int p_tab) const;